Questions Asked on
December 4, 2009

  1. math

    2. Mrs. young has her 18 students seated in a circle. They are evenly spaced and numbered in order. which student is directly opposite these three students? .student#1? .student#5? .student#18?

    asked by afo
  2. calculus

    A man launches his boat from point A on a bank of a straight river, 3 km wide, and wants to reach point B, 2 km downstream on the opposite bank, as quickly as possible. He could row his boat directly across the river to point C and then run to B, or he

    asked by Avilene
  3. chemistry

    When combined with cupric ions (aq, 1M) which will produce the largest standard cell voltage? a. ) KMnO4(aq) b. ) MnO2(s) c. ) MnCl2(aq) d. ) Mn(s) im guessing its Mn(s)...but i don't know if im right can someone plz help me? :(

    asked by nigel s
  4. Chemistry

    5 liters of Butane gas (C4H10) is reacted with plenty of oxygen at 27 oC and 1 atm to produce carbon dioxide and water vapor. Calculate the following: 1- The volume of CO2 produced at 1 atm and 400 oC. 2- The mass of H2O vapor produced. 3- The mol % of the

    asked by Steve
  5. physic

    A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 7.00×10^-3 m/s^2 less than that at sea level. What is the observatory's altitude?

    asked by peggy
  6. Physics- PLEASE!!

    A U-shaped tube is filled mostly with water, but some vegetable oil has been added to both sides of the U tube. On the right side of the tube, the depth of oil is 5.00 cm . On the left side of the tube, the depth of the oil is 2.30 cm. The density of the

    asked by Jim
  7. physic 1010 university level

    Estimate the force of attraction between a 50.0 kg woman and a 70.0 kg man sitting 2.00 m apart.

    asked by emili
  8. Automotive engine parts and operation

    plz help me w/ the answers i have n tell me if i'm wrong. 1. An automotive engine's camshaft rotates at A. the same speed as the crankshaft B. one-quarter the speed of the crankshaft C. one-half the speed of the crankshaft D. twice the speed of the

    asked by Nessa
  9. physic 1010 first year university

    Planet Z is 9000 km in diameter. The free-fall acceleration on Planet Z is 10.0 m/s^2.What is the mass of Planet Z?

    asked by elona
  10. Literature

    Need help with this: 'Explain how rhyme, rhythm, and other sound effect such as alliteration, assonance, and onomatopoeia, can contribute to a poem's mood. Support your ideas with examples from the two poems 'American Hero' and 'The Gift' Thanks -MC

    asked by mysterychicken
  11. home economics

    what are ten careers in home economics

    asked by dj
  12. Business Maths

    Please show me how to calculate this problem: During 2007, Sitter Corporation reported net sales of $2,000,000, net income of $1,200,000, and depreciation expense of $100,000. Sitter also beginning total asset of $1,000,000, ending total asset of

    asked by Peaches
  13. Math

    A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?

    asked by Janet
  14. Physics

    An ideal spring with a stiffness of 329 N/m is attached to a wall, and its other end is attached to a block that has a mass of 15.0 kg. The spring/block system is then stretched away from the spring's relaxed position until 57.0 J of mechanical energy is

    asked by John
  15. Physics

    One end of a thin uniform rod, 1.00m in length, is attached to a pivot. The rod is free to rotate about the pivot without friction or air resistance. Initially, it is hanging straight down (the "6 o' clock position). Then the lower tip is given an initial

    asked by John
  16. physics

    Two masses are attached to an Atwood machine. the mass of block A is 12.3kg and the mass of B is 4.2kg. the pulley is massless but has kinetic friction of 16N. The blocks are released from rest, what is the acceleration of the system

    asked by kelly
  17. science ( soda can)

    Why does a can of soda left in the car on a hot summer day explode? Why does a can of soda left in the freezer eplode?

    asked by Lou
  18. English-Writing

    In citing work in an essay from a textbook in MLA format do you: use the textbook name and then the page number or do you use the publishers name with the page number?

    asked by Sue
  19. math

    lisa studies 9 hrs. for a test and gets a score of 72. at this rate, how many hrs. would she have had to study to get a score of 92?

    asked by Janet
  20. Math

    A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?

    asked by Janet
  21. Chemistry

    A solid metal is often known as having 'an array of positive ions in a sea of electrons'. Write down the electronic structure of magnesium atom and use it to explain what this phrase means. Actually I don't know how to explain it. So I need you to explain

    asked by Eman
  22. matha

    why did zorna pour ketchup on her brother's hand

    asked by engelica
  23. Geometry

    Triangle ABC has vertices A = (0,6) B = (-2,3), and C = (2,1). Find the coordinates of its vertices if it is translated by the equations: x' = x - 4, y' = y -3

    asked by Lenora
  24. Math word problem

    Alonso can't decide which size pizza to order. The 10-inch cheese and sausage pizza is $7.99, while the 12-inch deluxe is $8.99. The dimensions given are the diameters of the pizzas. If he gets the 10-inch pizza, the total price will be divided among 3

    asked by Lyndse
  25. algebra

    36 Upstream, downstream. Junior’s boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?

    asked by Linda
  26. physics

    a 5 kg object placed on a frictionless,horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging 9kg objct.find the acceleration of the two objcts and the tension in the string

    asked by latifah
  27. Physics

    A 46.5 kg block sits at rest on a frictionless, horizontal surface. It is connected horizontally, via a massless, ideal spring to a stationary wall. A force is then used to displace and hold the block in a new position (so that the spring is compressed).

    asked by John
  28. Math

    If the doubling time of a state's population is 42 years, how long does it take for the population to increase by a factor of 16?

    asked by Randi
  29. Literature

    El Olvido: It is a dangerous thing to forget the climate of your birthplace, to choke out the voices of dead relatives when in dreams they call you by your secret name. It is dangerous to spurn the clothes you were born to wear for the sake of fashion;

    asked by mysterychicken
  30. Math word problem

    A small circular pool is enclosed in a square. Find the area inside the square but outside the circle? (of the shaded region). There is a picture of a square, which is shaded, around a circle. The circle is touching all four sides of the square and there

    asked by Lyndse
  31. computer

    Object-Oriented Data and Processes • Identify a task you perform regularly, such as cooking, mowing the lawn, or driving a car. • Write a short, structured design (pseudocode only) that accomplishes this task. • Think about this task in an

    asked by john
  32. English

    I was wondering if you could help me find literary devices in this passage in "Othello" by Shakespeare: Desdemona: "My noble father, I do perceive here a divided duty: To you I am bound for life and education; My life and education both do learn me How to

    asked by Aaron
  33. Physics

    Hi I tried asking this question yesterday but still had some confusion.Since the area must be in cm^2. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2 . What is the area of contact

    asked by Elizabeth
  34. Smallpox

    How did smallpox affect the lives of people in the 19th century? Please help thanks

    asked by JLJS
  35. Physics?

    Hi this question is beyond me, so any help = great. A useful instrument for evaluating fibromyalgia and trigger-point tenderness is the Doloriometer or Algorimeter. This device consists of a force meter attached to a circular probe that is pressed against

    asked by Tony
  36. Math

    If the odds in favor of an event A are 3 to 1, what is the probability associated with event A occurring?

    asked by Kate
  37. HCA 210

    What are some of the long-term facilities in your community or state? Are there any essential services missing? If yes, what are they? If no, what services might be improved on? What other health care services are offered in your community or state that

    asked by Sue
  38. physics

    An 8.56 kg block of ice at 0 degrees celsius is sliding on a rough horizontal icehouse floor (also at 0 degrees celsius) at 15.6 m/s. Assume that half of any heat generated goes into the floor and the rest goes into the ice. How much ice (in kg) has melted

    asked by AE
  39. Science

    Some possible properties of modern insecticides are listed below, When these insecticides are used which property helps to keep environmental pollution at the lowest level? A. Accumulation in the bodies of predators. B. Quiqly broken down by bacteria. C.

    asked by Kaled
  40. chilcare

    Barry seems to do things without thinking. He has a great deal of trouble waiting for things , and he frequently leaves his small group and interrupts other . Which exceptionality most closely resembles Barry's behavior? A Rett's disorder B Autism C

    asked by Rosa
  41. Science

    The number of organisms of the same species living within the total area of their entire habitats is best known as... A. Population size B. Ecological desity C. Crude density D. None of the above

    asked by Kaled
  42. Reading

    Aww man~ Why do you peeps always link me to reading alot??? It is too boring! Just tell me which one is it.

    asked by Kaled
  43. Physics

    In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 2.0m/s, but because of the kinetic friction between the puck and the ice, the puck travels only half the distance between the players before coming to rest. Assuming

    asked by John
  44. Science/Math

    In a population being studied over a limit of time, four eggs hacth, six birds leave the area, three are eaten by cats, and five move into the area. What is the population change over the period of study? A. An increase of 2 birds. B. A decrease of 4

    asked by Kaled
  45. Chemistry

    I am having a lot of trouble understanding acid-base reactions. I was able to struggle through most of the homework, but I'm not usre about these questions. 1) Can an acidic solution be made less acidic by adding an acidic solution? 2) Pennies manufactured

    asked by Mary
  46. Algerbara

    I am doing equations with Zero Product Rule and am stuck on two problems. 2y2 + 5y = -3 x2 = -3x

    asked by Hannah
  47. Math

    Suppose a quantity is halvd every 18 years. use the approximate half-life formula to estimate its decay rate. is the half life equation y= 1/2^t1/2 2^1/2t= 1/y t 1/2= log2 (1/y) Where do I put 18 at?

    asked by Randi
  48. Physics

    Thank you so much bobpursley for all your help. I actually think I'm beginning to understand, physics involves a lot of what I've learned so far, Newton's laws, mass, acceleration, etc... I just have to make connections. “A Honda Civic and Lincoln Town

    asked by Hannah
  49. Math

    Suppose that a country's population is 64 million and its population growth rate is 3.7% per year. If the population growth follows a logistic growth model with r=.053, what is the country;s carrying capacity? How do I solve this problem... or at least

    asked by Taylor
  50. biology

    You have isolated the genome from a novel virus and would like to determine its composition. you have three tubes, each containing one of these substance: 1. a protein that degrades double stranded DNA (DNase, tube 1) 2. a protein that degrades single

    asked by Anonymous
  51. physics

    Find the resultant force of a 32-N force pulling horizontally on a wooden crate and a 20-N force pulling at an angle of 49 degrees upward of horizontal. (Your answer should include magnitude and direction of the force)

    asked by Jade
  52. Calculus

    Silly question here, but I am not getting a certain part in the solution in a problem. Evaluate the integral of [(sin(ln(39x)))/x]dx. We are supposed to take u=ln(39x), and get du=(1/x)dx, and the then whole thing is simply solved using integration

    asked by O_o Rion
  53. math

    1. A farmer had several pens out by the barn. He had used 17 lenghts of fence to make the pens, but now he needs to use six of those fence lengths for another project. He wants to remove six fence lenghts but still have two square pens remaing. Which

    asked by fko
  54. math

    Simplify each of the following, if possible. Write your answers in the exponential form ab. (a) 24 • 25 • 28 (b) 34 + 2 • 34 (c) 250 • 250

    asked by student
  55. Accounting

    A company incurs a cost for a part which is needed to repair a piece of equipment. Is the cost an asset or an expense? Explain.

    asked by Ralph
  56. summoner's tale

    what is funny about the summoner's tale

    asked by jaz
  57. Math

    Suppose that a country's population is 64 million and its population growth rate is 3.7% per year. If the population growth follows a logistic growth model with r=.053, what is the country's carrying capacity?

    asked by Taylor
  58. chemistry

    how many atoms of CA is found in the mineral Hydroxyapatite( Ca5OH(PO4)3 How many atoms of H is found in the mineral Hydroxyapatite, How many atom of O in Hydroxyapatite, How many atom sof P, and has a molar mass mass of___________?

    asked by stephanie
  59. college

    Which of the following choices is a solution for: (-3-i)x1 + (1-2i)x2 = 0 (-7-9i)x1 + (7-4i)x2 = 0 for any value of the variable t [x1] = ? [x2] A: [5] [1+7i] * t B: [5] [1-7i] * t C: [5] [-1-7i] * t D: [5] [-1+7i] * t This is linear algebra by the way;

    asked by Michael
  60. Linear Algebra

    I previously posted this question under the wrong topic. Which of the following choices is a solution for: (-3-i)x1 + (1-2i)x2 = 0 (-7-9i)x1 + (7-4i)x2 = 0 for any value of the variable t [x1] = ? [x2] A: [5] [1+7i] * t B: [5] [1-7i] * t C: [5] [-1-7i] * t

    asked by Michael
  61. Science

    Some possible properties of modern insecticides are listed below, When these insecticides are used which property helps to keep environmental pollution at the lowest level? A. Accumulation in the bodies of predators. B. Quiqly broken down by bacteria. C.

    asked by Kaled
  62. Math

    In one three day weekend, the daily high temperature had a median value of 73. The mean temperature was 74.33 and the range of temperatures was 14. What were the three weekend daily high temperatures?

    asked by Todd
  63. Creative Writing

    Using the multi-step Process Writing method, write a (minimum) 500-word essay or short story, or a five-stanza poem using Cause and Effect. If the poem is free verse (non-rhyming), it must be at least 400 words long. (You may also incorporate other methods

    asked by y912f
  64. economics

    The table shows the relationship for a hypothetical firm between its advertising expenditures and the quantity of its out-put that it expects it can sell at a fixed price of $5 per unit. Advertising Quantity Sold at P = $5/IN Expenditures (millions)

    asked by Anonymous
  65. hca 270

    hey yea i posted earlier and i havent responded can some one please hel[p im confused and am cutting close on assinment because ive got things going on and mixed up can someone please help this is due tonite help

    asked by sammy urgent please help
  66. hca 249

    An interviewee named Mattie has been telling you all about her sister. Mattie’s sister is a delicate, 72-year-old great-grandmother. She recently had an ultrasound that revealed an aneurysm near her heart. Mattie’s sister did not understand the

    asked by trudy
  67. spanish 2

    How do you say ways to get around in spanish and directions around the city

    asked by jaz
  68. Mythology

    What is hell the equivalent to in Celtic mythology?

    asked by Janet or Miss Jackson
  69. statistics

    An athlete suspected of having used steroids is given two tests that operate independently of each other. Test A has probability 0.91 of being positive if steroids have been used. Test B has probability 0.77 of being positive if steroids have been used.

    asked by Anonymous
  70. french

    What does Revellion mean?

    asked by Barbara
  71. Physics

    A sphere submerged in water to the 9-3 o' clock position so that the top half is out of the water. A crate is positioned at the 12 o'clock position. It starts from rest and slides from left to right down to the water. At what angle (theta) does the crate

    asked by John
  72. Math

    When an object can be shifted, say to the left or right, and still remains the same; this is an example of what time of symmetry

    asked by Randi
  73. physics

    what can we learn from an analysis of a stellar spectrum?

    asked by Doly V
  74. math

    3/4/1/8

    asked by whit
  75. Science

    Nitrogen fixation is carried out primarily by humans by... A. Humans. B. Plants. C. Bacteria. D. Consumers.

    asked by Kaled
  76. Science

    Which one of the following best describe a eutrophic lake? A. algae bloom, low oxygen levels, high diversity of species. B. algae bloom, high diversity of species. low oxygen levels, C. algae bloom, low oxygen levels, high diversity of species. D. algae

    asked by Kaled
  77. Science

    Which of the following is an example of bioamplification? A. Too many herbivores in an ecosystem, due to loss of predators. B. An oil spill that destroys all marine life. C. An excess of nitrogen which causes algal cloom on the water's surface. D. High

    asked by Kaled
  78. Science

    With which of the following is the study of an ecosystem Most concered? A. Determining population changes in the area being investigated. B. Making measurements of regional variaties in temperature, wind velocity, and precipitation. C. Analyzing the

    asked by Kaled
  79. English Essay

    Hi, this is my first paragraph to my essay on Hamlet. Please provide any feedback. Hamlet, a tragedy by Shakespeare, follows a downward spiral of the kingdom of Denmark. King Claudius plants a seed of corruption that initiates this spiral. Both simile and

    asked by Anonymous
  80. Algebra 1A

    Translate Two dollars plus four cents times the number of minutes in part into a symbolic rule. Use c to represent the total monthly cost and n to represent the total number of long-distance minutes for the month.

    asked by Mike
  81. hca 270

    i have to do this and i have no idea im so confused i know to define but what is a real world example. and what are the fouec's and five pillars? im confused a little hint of help please The Four C’s and Five Pillars Directions: Consult Ch. 1 and the

    asked by sammy
  82. Algebra

    I need help to see if I did these steps and problems right before I hand this in…I am stuck, and cannot figure out question three part b and H…I just need help with the proper function of b and h part. 1. An anthropologist drives a car at a speed of 30

    asked by Holly
  83. math

    terry shared three pizzas with some friends. terry ate 1/4 of them. how much pizza did terry eat?

    asked by Kris
  84. math

    how do you do arrays and an expanded algorithm? 23x17?

    asked by jhedrione
  85. Economics/Math

    3. Assume you own a painting. If you sold it now, you could get £500 for it. However, the amount that people will be willing to pay in the future increases by £25 in odd years (including the first one) and by £26 in even years, for the next 53 years. If

    asked by Susan
  86. Calculus

    Suppose a cylindrical can is manufactured with radius r. The manufacturing process makes the length r imprecise; r can be off by ±0.03 cm. The manufacturing process makes the height of the can precisely equal to three times the radius r (including any

    asked by Steven
  87. Management

    Jane is an editor for a large company. Jane performs most of her work at home and visits the office twice a week to attend meetings. Jane is a. utilizing flexible time, b. telecommuting, c. part-time employee, d. a temporary employee.

    asked by marilia
  88. Statistics

    "Children from single family homes are more successful on standardized tests" What would the null hypothesis be?

    asked by Linda
  89. physical science

    How much time should be allowed for a 392-km car trip if the car will be traveling at 120 km/h?

    asked by sandy
  90. physics

    In movies like “Speed”, hidden ramps are used to make seemingly impossible jumps across open spaces. Suppose a vehicle, say a bus (8500 kg), drives up a ramp such that it leaves the ramp with Vi = 30.0 m/s (about 67 mph) at an angle of 20.0o. What is

    asked by Alex
  91. health care

    What are the main purpose of ambulatory care?

    asked by mary
  92. childcare

    The formation of children's core values is most strongly influenced by a peers. B family. C elementary school teacher. D child care providers. The correct answer for me is B

    asked by Rosa
  93. 11th grade

    I really need assistance in starting a project that is due in 2 weeks. I basically need to create a gravity-powered vehicle that will go travel down a ramp, go across the floor 1 meter away and hit a wall. The catch is that there will be a "passenger" (an

    asked by Kayla
  94. english

    im a bit confused of what could be the conclusion behind the following lines written by Melville in his LETTER TO NATHANIEL HAWTHORNE, JUNE 1851. the lines are: A: “So the product is a final hash, and all my books are botches.” is this mean that no one

    asked by bindiya farswani
  95. medical terminoolgy

    describe the appraoch for body cavities

    asked by sue
  96. math

    whats a perimeter?

    asked by Anonymous
  97. Physics

    what is the mass of hydrogen peroixide, H2O2, in 350 grams ofa 20% by weight solution?

    asked by Doly V
  98. Physics

    I am having some trouble with some questions and need some help. A neutron with a mass of 1.68 x10(-27) exponent kg moves from a nuclear reactor with a velocity of 3.22 x10 (3) exponent m/s. What is the Broglie wavelength? Also, I need to write tge

    asked by Doly V
  99. physics

    what is the difference between high octane and regular gasoline

    asked by Doly V
  100. science

    1. What is Malathion? 2. What are hazard identifications of Malathion? 3. What is Malathion dose-exposure? 4. What are risk characterization for Malathion?

    asked by Lori
  101. physics

    A crate starts from rest at the top of a large, frictionless spherical surface, and slides into the water below. At what angle, θ, does the crate leave the surface?

    asked by Kaitlyn
  102. PSYCHOLOGY am i correct

    The following table describes five situations in which a person reacts to stress in an unhealthy manner. For each: a. identify the stressor(s). b. briefly explain why the person's reaction is an unhealthy choice. c. briefly describe one healthy alternative

    asked by scooby
  103. accounting

    compute for the unknown please help me, i really don't underdstand this CASE A cost of goods manufactured 15,000 cost of good sold 25,000 finished goods invty. jan 1 22,500 finished good invty. dec 31 ? thank you

    asked by Like Roses
  104. PSYCHOLOGY

    Harold sees his coworkers as inconsiderate, unsupportive, and lazy. He hates his job. what would u say Two Possible Moderators of Stress could be

    asked by scooby
  105. Science

    Which group of plants have nitrogen fixing bacteria in their root nodules? A. Grass. B. Phytoplankton. C. Legumes. D. Seaweeds.

    asked by Kaled
  106. Algebra 1A

    Translate Two dollars plus four cents times the number of minutes in part into a symbolic rule. Use c to represent the total monthly cost and n to represent the total number of long-distance minutes for the month, and then Determine the monthly cost if 250

    asked by Mike
  107. math

    how would you solve these problem using distributive property question #1 5(45+5)=5(_____) question#2 9(42)-9(4)=9(30)+9(______) I need this before Sunday December 6,2009

    asked by Anonymous
  108. chilcare

    when properly executed, the behavior management strategy known as a time-out becomes A a positive reinforcer. B more effective than logical consequences. C a conversation between child and adult. D suitable punishment for misbehavior. The correct answer is

    asked by Rosa
  109. aed 200

    an outline of your educational debate persuasive paper on are uniforms a good way to improve student discipline and motivation

    asked by kisha
  110. math

    4x^2+4x=3 solve by completing the square

    asked by kaitlin
  111. child care

    when properly executed, the bahavior management strategy known as a time-out becomes A a positive reinforcer. B more effective than logical consequences. C a conversation between child and adult. D suitable punishment for misbehavior. The correct answer is

    asked by Rosa
  112. Math

    If u have a hundred points and split it into 4 . But you cant use a number more than once. What numbers would you use.

    asked by Lexi
  113. Organic Chemistry

    How can I relate cis, trans cyclohexane to enantiomer pairs, diastereomers, and meso stereoisomers?

    asked by Cerise
  114. Organic Chemistry

    what is meant by "resolving" an enantiomer pair? what are some ways in which it can be done?

    asked by Cerise
  115. economics

    The table shows the relationship for a hypothetical firm between its advertising expenditures and the quantity of its out-put that it expects it can sell at a fixed price of $5 per unit.

    asked by Anonymous
  116. Science

    In a field having an area of 3.0 ha is a colony of ground squirrels with 90 members. What is the density of the ground squirrel population? A. 90 ground squirrels. B. 270 ground squirrels/ha. C. 30 ground squirrels/ha. D. 0.030 ground squirrels/ha.

    asked by Kaled
  117. Set theory

    For any given integral domain, state the law of trichotomy, and show that in an integral domain D, the square of non-zero elements are positive

    asked by Genius